Improved car-spring



V w. YNI'EUBAUER.

Car Spring. No. 49,137. v Patented Aug. 1,1865,

UNITED STATES PATENT OFFICE.

WM. NEUBAUER, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVED CAR-SPRING.

Specification forming part of Letters Patent No. 49,137, dated August 1,1865.

To all whom it may concern:

Be it known that I, WILLIAM NEUBAUER, of the city and county ofPhiladelphia, and State of Pennsylvania, have invented a new and usefulImprovement in Gar-Springs; and I do hereby declare that the followingis a full, clear, and exact description of the construction andoperation of the same, reference being had to the annexed drawings,making a part of this specification, in which- Figure 1 is a top view ofthe improved spring. Fig. 2 is a vertical section of the same at the redline a b of Fig. 1. Fig. 3 is a perspective view of one of thespring-plates A.

Like letters in all the figures represent the same parts.

The nature of my invention consists of an improvement on the car-springfor which G. Adolph Riedel obtained a patent August 2, 1864, which willbe understood by the following description.

I make aspring with a combination of plates, A,which I usually constructwith'four resilientparts, a a a a, although I do not confine myself tothat number. These spring-plates I arrange in cast-iron boxes B. Thelower one is represented in Figs. 1 and 2. The upper box, which is leftofi" for the purpose of showing the interior arrangement of the combinedspring, is large enough to tit over the lower one. Each plate A has theresilient parts a turned on an angle from the central portion of thesame. A curved form may, however, be used instead. The outer and longestsprings in each section are shorter each way than the boxes B, to allowsufficient room for the lengthening of the springs during thecompression of the same. Commencing at the outside plate of each sectionof the combined spring the resilient parts a of each succeeding plateare shortened in regular order for the purpose of increasing theelasticity and strength of the spring.

There are washers 0, made of leather or other suitable elasticsubstance, between the plates A. Instead of these washers covering thewhole central portion of the plates they may be put on in strips, withspaces between them.

D D are clamp-plates, between which the spring-plates A are confined bytwo or more screw-bolts,E, so as to bring the resilient parts a incontact, as represented in Fig. 2. The an gles of the plates are soformed that when the latter are in position there shall be spaces 11between them to secure the elasticity of the.

same; and when the springis compressed these spaces should not bedestroyed. The object of the washers C is for the purpose of preventingthis. The central hole, F, is for the purpose of passing a bolt throughthe spring in attaching it to the pedestal of a car.

I have represented two sectionsiu the spring,

-yet it will appear that for some purposes one angles from the centralportion of the springplates which compose the combined spring, anddecreasing the length of the said resilient parts of each plate in orderfrom the outer plates for the purpose of increasin g the strength of thespring and imparting increased elasticity to the same, substantially asdescribed.

2. Varying the angles of theresilient. parts of the spring in such amanner that there shall be spaces b extending over the whole surface ofthe spring-plates between their points of contact, substantially asrepresented, for the purpose of giving increased elasticity to thespring, substantially as above described.

In testimony that the above is my invention I I have hereunto set myhand and seal this 28th day of March, 1865.

WILLIAM NEUBAUER. [L. 8.]

Witnesses:

STEPHEN USTICK, JOHN WHITE.

